Explain what are snapshots? What are materialized views & where do we use them? What is a materialized view log?
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What is Factless fact table? In which purpose we are using this in our DWH projects?Plz give me the proper answer. Thanks, Ramesh
What is the function of etl when used in data warehousing?
DWH architecture?
What is DTM session?
Can you state some of the innovations throughout history?
Explain what is the advantages data mining over traditional approaches?
Explain what is the difference between olap and datawarehosue?
How can you implement many relations in star schema model?
Explain what is the difference between a primary and secondary actor in use case modeling?
What are data validation strategies for data mart validation after loading process?
What is data cleaning? How can we do that?
What are the other names given to data warehousing?